scats field experience at the
DESCRIPTION
SCATS Field Experience at the. Gary Piotrowicz PE, PTOE TRB January 11, 2004. SCATS BACKGROUND. System has been in operation since 1992. Funds have come from earmarks, STP, NHS, CMAQ, Locals, and Private Companies. - PowerPoint PPT PresentationTRANSCRIPT
SCATS Field Experience SCATS Field Experience at theat the
Gary Piotrowicz PE, PTOETRB January 11, 2004
SCATS BACKGROUNDSCATS BACKGROUND System has been in operation since System has been in operation since
1992.1992. Funds have come from earmarks, Funds have come from earmarks,
STP, NHS, CMAQ, Locals, and STP, NHS, CMAQ, Locals, and Private Companies.Private Companies.
Currently there are over 600 SCATS Currently there are over 600 SCATS signals. Over 650 by the end of signals. Over 650 by the end of 2004. 2004.
SCATSSCATS HARDWARE STRUCTURE HARDWARE STRUCTURE
ManagementManagementComputerComputer SCATSSCATS
ControllerController
AutoscopeAutoscope
RegionalRegionalComputerComputer
SELECTION OF SCATSSELECTION OF SCATS Wanted a system that was cutting edge Wanted a system that was cutting edge
with real-time signal plan generation.with real-time signal plan generation. In 1989 only 2 systems existed.In 1989 only 2 systems existed. SCATS fit better with the local SCATS fit better with the local
conditions:conditions: 8 Phase signals8 Phase signals Poor SpacingPoor Spacing Corridors/GridsCorridors/Grids
What to Look for in an What to Look for in an Adaptive Signal SystemAdaptive Signal System
Determine your own system Determine your own system needs/issues.needs/issues.
Find a system that meets these Find a system that meets these needs.needs.
Determine if the you have the Determine if the you have the resources and personnel to O & M resources and personnel to O & M the system.the system.
SCATS COSTSSCATS COSTS(Oakland County)(Oakland County)
CentralCentral SoftwareSoftware HardwareHardware ConsultantsConsultants
FieldField Per intersectionPer intersection
Operations and MaintenanceOperations and Maintenance field, software, personnelfield, software, personnel
BENEFITSBENEFITSAccident Severity AnalysisAccident Severity Analysis
Possibly Injured
IncapacitatingNon-Incapacitating
BEFORE AFTER
9% 4%
BENEFITSBENEFITSTravel Time ImprovementsTravel Time Improvements
(NB Orchard Lake Rd)(NB Orchard Lake Rd)
-20%-20% -32%-32% -7%-7%
AM PeakAM Peak Off-PeakOff-Peak PM PeakPM Peak
SUCCESS STORYSUCCESS STORY (I-75 Truck Roll-over in (I-75 Truck Roll-over in
Auburn Hills)Auburn Hills)
Freeway closed from 3pm to 9pm.Freeway closed from 3pm to 9pm. SCATS Response:SCATS Response:
Maintained peak cycle lengths until Maintained peak cycle lengths until after 9:30after 9:30
Handled unusual traffic patternsHandled unusual traffic patterns Done without operator interventionDone without operator intervention
SCATSSCATS EVENT MANAGER EVENT MANAGER
CHALLENGESCHALLENGES Keeping Qualified PersonnelKeeping Qualified Personnel
EngineersEngineers TechniciansTechnicians ElectriciansElectricians ConsultantsConsultants
Public UnderstandingPublic Understanding Changes in the OperationsChanges in the Operations Capacity IssuesCapacity Issues
LESSONS LEARNEDLESSONS LEARNED Do NOT over sell the benefits.Do NOT over sell the benefits. You can never have too much training You can never have too much training
and personnel.and personnel. Bring in an outside expert to audit the Bring in an outside expert to audit the
system.system. Implement a strong public relations effort.Implement a strong public relations effort. Get buy in from all levels of management.Get buy in from all levels of management.
LESSONS LEARNED, cont.LESSONS LEARNED, cont. Get buy in from electrical shop.Get buy in from electrical shop. Must have continuous and Must have continuous and
adequate revenue stream for O & Madequate revenue stream for O & M Get employees that will take Get employees that will take
ownership in the system.ownership in the system. Deploy at a pace within your Deploy at a pace within your
resources.resources.